What is the correct way to use the Zerostat?

Hi fellow members,

Need some help with my Zerostat gun used for my vinyl records.

First, should the record be spinning on the platter when I slowly squeeze and slowly release the trigger aimed at the record on the turntable, or should the record be stationary while I pull and release the trigger?

Second, what's the nozzle with a lightbulb that came with the Zerostat do? Is this a test? How do I use it? There was no instruction manual in the box to tell me how to use it.

Third, no matter how slow I pull or release the trigger, I still get a click noise from the Zerostat. Based on reading forums, it appears that if you hear clicking noise, that means I pulled/released too fast on the trigger. How slow is considered slow ?

Any help/feedback would be nice.